This course is the first of a series that aims to prepare you for a role as an entry-level IT Support Specialist. In this course, you’ll be introduced to the world of Information Technology, or IT. You’ll learn about the different facets of Information Technology, like computer hardware, the Internet, computer software, troubleshooting, and customer service. This course covers a wide variety of topics in IT that are designed to give you an overview of what’s to come in this certificate program.
By the end of this course, you’ll be able to:
● understand how the binary system works.
● assemble a computer from scratch.
● choose and install an operating system on a computer.
● understand what the Internet is, how it works, and the impact it has in the modern world.
● learn how applications are created and how they work under the hood of a computer.
● utilize common problem-solving methodologies and soft skills in an Information Technology setting.

AL

Great course for beginners and experts. Easy to understand and a good refresher for those who have been into IT for a long date. Recommend it to everyone looking for a high quality course on coursera.

FK

Mar 10, 2018

Filled StarFilled StarFilled StarFilled StarFilled Star

An excellent introductory course. The all around material was well presented, the instructors are doing a great job passing on their knowledge. The weekly assignments were interesting and fun to take.

수업에서

Networking

In the fourth week of this course, we'll learn about computer networking. We'll explore the history of the Internet and what "The Web" actually is. We'll also discuss topics like Internet privacy, security, and what the future of the Internet may look like. You'll also understand why the Internet has limitations even today. By the end of this module, you will know how the Internet works and recognize both the positive and negative impacts the Internet has had on the world.

강사:

Google

스크립트

You’ve learned what the Internet is and a little bit about how it works. Now, we’re going to take a step back and learn why it was created. But before we do that, I’d like to introduce myself. My name is Gian Spicuzza and I'm a program manager in Android security. I help protect Android's 2 billion plus users by managing new security features for each of Android's desserts or versions of Android. I've always loved technology and I worked in IT since I was 16 and throughout university. I would fill my pastime reading about new tech and building servers from old computer parts in my basement. My earliest memory of working on tech is waiting for my parents to go to sleep so I could quietly dial up the Internet while the phone was free and just browse websites all night long and read about random tech things. My first jobs were as a one person IT crew at three nonprofit organizations. It was both stressful and really exciting to be responsible for everything. From configuring and administrating backup servers, to just showing new employees how to access email and use their computers. I'm really excited to be here with you. I was never a really great test taker, and my grades reflected that. But I knew with hard work and perseverance, I could build a great career in IT, and so can you. So let's get started and dig in a bit more on the Internet. The Internet has become an essential part of our lives. Our bank accounts, entertainment, news and education are all on the Internet. It's important to learn why that is, since some of the original designs of the Internet have reached their limitations. As an IT support specialist, you should understand what the future of the Internet holds and why. Let's go back in time to the 1950s where it all started. Remember, back then computers were huge and bulky. If you were a programmer, you needed to directly interact with these massive computers. That would get real old real fast, especially if you had several people who wanted to use the only computing resource available. In the late 1960s, the US government spun up a project called DARPA. It went on to create the earliest version of the Internet that we see today with the ARPANET. Eventually, computer programmers were able to share a single computing resource by being able to remotely access the computer. But there was still a big problem. Networks couldn't talk to each other. It wasn't until the 1970s that we had a critical breakthrough in computer networking that fixed this problem. It was thanks to computer scientists Vinton Cerf and Bob Kahn, who created the method we call the Transmission Control Protocol and the Internet Protocol, or TCP/IP. First, only a handful of computers in universities, governments, and businesses adopt TCP/IP, then hundreds. And then, in the span of 50 years, billions of computers. TCP/IP is the protocol we use on the Internet today. Finally, people around the world could send data to one another, but there was still a problem. The information they sent was just text. It wasn't centralized and it was pretty bland. Then, in the 1990s, a computer scientist by the name of Tim Berners-Lee invented the World Wide Web. It utilized different protocols for displaying information in webpages and became the predominant way of communication in accessing the Internet. Anyone who had an Internet connection at that time was able to access the information source of the World Wide Web. It's been 30 years since the creation of the World Wide Web. We've gone from sending simple email messages and viewing basic webpages to having video chats and instant news updates. Order food, buy books, and even cars in a matter of seconds. Taking an online course like this wasn't even possible until recently. The creation of the Internet that we know today was a culmination of knowledge and engineering from many brilliant scientists and organizations. If you want to learn more about the history of the Internet, check out the supplemental reading and the networking course in this program. In the next video, we'll explore the limitations of the original designs of the Internet and how these limitations affect us today.